| Date |
Champ Car |
Formula One |
ALMS |
IndyCar |
| March 12 |
|
 Bahrain
Grand Prix of Bahrain
2005 winner: Fernando Alonso
 |
|
|
| March 19 |
|
Kuala Lumpur
Grand Prix of Malaysia
2005 winner: Fernando Alonso
|
Sebring, FL
(Saturday 18)
Mobil 1 Twelve Hours of Sebring
2005 winner: Lehto/Werner/Kristensen
|
|
| March 26 |
|
|
|
Miami, FL
Toyota Indy 300
2005 winner: Dan Wheldon
Pro Series support race |
| April 2 |
|
Melbourne
Grand Prix of Australia
2005 winner: Giancarlo Fisichella
|
|
St. Petersburg, FL
Honda Grand Prix
2005 winner: Dan Wheldon
Pro Series support race |
| April 9 |
Long Beach, CA
Toyota Grand Prix of Long Beach
2005 winner: Sébastien Bourdais
Atlantic support race |
|
|
|
| April 16 |
|
|
|
|
| April 23 |
|
Imola, Italy
Grand Prix of San Marino
2005 winner: Fernando Alonso
GP2 support race |
|
Motegi, Japan
(Saturday 22)
Indy Japan 300
2005 winner: Dan Wheldon
|
| April 30 |
|
|
|
|
| May 7 |
|
Nürburgring, Germany
Grand Prix of Europe
2005 winner: Fernando Alonso
GP2 support race |
|
|
| May 14 |
Houston, TX
(Saturday 13)
Grand Prix of Houston
Inaugural event
American Le Mans Series and Atlantic support races |
Barcelona
Grand Prix of Spain
2005 winner: Kimi Räikkönen
GP2 support race |
Houston, TX
(Friday 12)
Lone Star Grand Prix of Houston
Inaugural event
|
Indianapolis, IN
(Saturday 13)
Indy 500 Pole Day
Time trials Saturday 13 and Sunday 14 |
| May 21 |
Monterrey, Mexico
Tecate Telmex Grand Prix
2005 winner: Bruno Junqueira
Atlantic support race |
|
Lexington, OH
American Le Mans at Mid-Ohio
2005 winner: Leitzinger/Weaver
|
Indianapolis, IN
Indy 500 Bump Day
Time trials Saturday 20 and Sunday 21 |
| May 28 |
|
Monte Carlo
Grand Prix of Monaco
2005 winner: Kimi Räikkönen
GP2 support race |
|
Indianapolis, IN
Indy 500
2005 winner: Dan Wheldon
Pro Series support race |
| June 4 |
Milwaukee, WI
Milwaukee Mile
2005 winner: Paul Tracy
|
|
|
Watkins Glen, NY
Watkins Glen Indy
2005 winner: Scott Dixon
Pro Series support race |
| June 11 |
|
Silverstone
Grand Prix of Great Britain
2005 winner: Juan Pablo Montoya
GP2 support race |
|
Fort Worth, TX
(Saturday 10)
Bombadier Learjet 500
2005 winner: Tomas Scheckter
|
| June 18 |
Portland, OR
G. I. Joe's Grand Prix of Portland
2005 winner: Cristiano da Matta
Atlantic support race |
|
Le Mans, France
(Saturday 17)
24 Hours of Le Mans
2005 winner: Lehto/Werner/Kristensen
|
|
| June 25 |
Cleveland, OH
Grand Prix of Cleveland
2005 winner: Paul Tracy
Atlantic support race |
Montreal
Grand Prix of Canada
2005 winner: Kimi Räikkönen
|
|
Richmond, VA
(Saturday 24)
SunTrust Indy Challenge
2005 winner: Helio Castroneves
|
| July 2 |
|
Indianapolis, IN
Grand Prix of USA
2005 winner: Michael Schumacher
Formula BMW and Infiniti Pro Series support races |
Lakeville, CT
(Saturday 1)
New England Grand Prix
2005 winner: Werner/Lehto
|
Kansas City, KS
Indy 300
2005 winner: Tony Kanaan
|
| July 9 |
Toronto, Canada
Molson Grand Prix of Toronto
2005 winner: Justin Wilson
Atlantic support race |
|
|
|
| July 16 |
|
Magny-Cours
Grand Prix of France
2005 winner: Fernando Alonso
GP2 support race |
Toole, UT
(Saturday 15)
Grand Prix of Utah
Inaugural event
|
Nashville, TN
(Saturday 15)
Firestone Indy 200
2005 winner: Dario Franchitti
Pro Series support race |
| July 23 |
Edmonton, Canada
Grand Prix of Edmonton
2005 winner: Sébastien Bourdais
Atlantic support race |
|
Portland, OR
(Saturday 22)
Grand Prix of Portland
2005 winner: Biela/Pirro
|
Milwaukee, WI
Milwaukee
2005 winner: Sam Hornish Jr.
Pro Series support race |
| July 30 |
San Jose, CA
Grand Prix of San Jose
2005 winner: Sébastien Bourdais
Atlantic support race |
Hockenheim
Grand Prix of Germany
2005 winner: Fernando Alonso
GP2 support race |
|
Brooklyn, MI
Firestone Indy 400
2005 winner: Bryan Herta
|
| August 6 |
|
Budapest
Grand Prix of Hungary
2005 winner: Kimi Räikkönen
|
|
|
| August 13 |
Denver, CO
Grand Prix of Denver
2005 winner: Sébastien Bourdais
Atlantic support race |
|
|
Sparta, KY
Indy 300
2005 winner: Scott Sharp
Pro Series support race |
| August 20 |
|
|
Elkhart Lake, WI
Generac 500 at Road America
2005 winner: Pirro/Biela
|
|
| August 27 |
Montreal, Canada
Molson Indy Montreal
2005 winner: Oriol Servia
Atlantic support race |
Istanbul
Grand Prix of Turkey
2005 winner: Kimi Räikkönen
GP2 support race |
|
Sonoma, CA
Sonoma Indy
2005 winner: Tony Kanaan
Pro Series support races |
| September 3 |
|
|
Bowmanville, Canada
Grand Prix at Mosport
2005 winner: Weaver/Leitzinger
|
|
| September 10 |
|
Monza
Grand Prix of Italy
2005 winner: Juan Pablo Montoya
GP2 support race |
|
Joliet, IL
Delphi Indy 300
2005 winner: Dan Wheldon
Pro Series support race |
| September 17 |
|
Spa-Francorchamps
Grand Prix of Belgium
2005 winner: Kimi Räikkönen
GP2 support race
CANCELED |
|
|
| September 24 |
Elkhart Lake, WI
Grand Prix of Road America
Atlantic support race |
|
|
|
| October 1 |
|
Shanghai
Grand Prix of China
2005 winner: Fernando Alonso
|
Braselton, GA
(Saturday 30)
Petit Le Mans
2005 winner: Pirro/Biela
|
|
| October 8 |
|
Suzuka
Grand Prix of Japan
2005 winner: Kimi Räikkönen
|
|
|
| October 15 |
Ansan, South Korea
Grand Prix of South Korea
Inaugural event
CANCELED |
|
|
|
| October 22 |
Surfers Paradise, Australia
Lexmark Indy 300
2005 winner: Sébastien Bourdais
|
São Paulo
Grand Prix of Brazil
2005 winner: Juan Pablo Montoya
|
Laguna Seca, CA
(Saturday 21)
Monterey Sports Car Championships
2005 winner: Chilton/Shimoda
|
|
| October 29 |
|
|
|
|
| November 5 |
|
|
|
|
| November 12 |
Mexico City, Mexico
Gran Premio Mexico
2005 winner: Justin Wilson
|
|
|
|